Astronomy 104

Question 1 of 36

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The word astronomy means:

Select one of the following:

  • "Patterns among the stars."

  • "To study the stars."

  • "Discovering the universe."

  • "Personally traits set by the stars."

Question 2 of 36

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The number of classical planets in our Solar System is:

Select one of the following:

  • Eight

  • Nine

  • Twevle

  • Six

  • Four

Question 3 of 36

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A light-year is a unit commonly used in astronomy as a measure of:

Select one of the following:

  • Time

  • Speed

  • Mass

  • Distance

  • A term to confuse students

Question 4 of 36

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The early universe was composed mainly of which two elements?

Select one of the following:

  • Hydrogen and helium

  • Carbon and oxygen

  • Hydrogen and oxygen

  • Carbon and iron

  • Nitrogen and oxygen

Question 5 of 36

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There are ________ constellations in the entire sky.

Select one of the following:

  • 12

  • 13

  • 88

  • Hundreds of

  • Thousands of

Question 6 of 36

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The meridian is defined as an imaginary circe on the sky on which lie the :

Select one of the following:

  • Celestial equator and vernal equinox.

  • North and south celestial poles.

  • Zenith and the north and south celestial poles.

  • Zenith and east and west directions.

  • Celestial equator and summer solstice.

Question 7 of 36

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What defines the location of the equator on Earth?

Select one of the following:

  • The axis around which Earth rotates.

  • Where the ground is the warmest.

  • The tilt of Earth's rotational axis relative to its orbit around the Sun.

  • The orbit of Earth around the Sun.

  • All of the above.

Question 8 of 36

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The direction directly overhead of an observer defines his or her:

Select one of the following:

  • Meridian

  • Celestial pole

  • Nadir

  • Circumpolar plane

  • Zenith

Question 9 of 36

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The apparent path of the Sun across the celestial sphere over the course of a year is called the:

Select one of the following:

  • Prime meridian

  • Ecliptic

  • Circumpolar plane

  • Celestial equator

  • Eclipse

Question 10 of 36

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Which laws are based entirely on observational data without having any theoretical framework behind them?

Select one of the following:

  • Physical laws

  • Galileo's laws of planetary motion

  • Newton's law of motion

  • Deductive laws

  • Empirical laws

Question 11 of 36

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The time it takes a planet to complete one full orbital revolution is commonly known as its:

Select one of the following:

  • Period

  • Frequency

  • Orbital domain

  • Velocity

  • Eccentricity

Question 12 of 36

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If the Sun is located at one focus of Earth's elliptical orbit, what is at the other focus?

Select one of the following:

  • Earth

  • The moon

  • Another planet

  • Nothing

  • Jupiter

Question 13 of 36

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Kepler's third law is a relationship between an orbiting object's:

Select one of the following:

  • Gravitational force and mass

  • Acceleration and mass

  • Velocity and period

  • Period and semimajor axis

  • Semimajor axis and velocity

Question 14 of 36

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Newton's first law states that objects in motion:

Select one of the following:

  • Eventually come to rest.

  • Experience an unbalanced force.

  • Experience a nonzero acceleration.

  • Stay in motion.

  • Must wait for the second law to be enacted.

Question 15 of 36

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Which if the following properties of an astronaut changes when he or she is standing on the moon, relative to when the astronaut is standing on Earth?

Select one of the following:

  • Weight

  • Mass

  • Inertia

  • All of the above

  • Nothing changes

Question 16 of 36

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Suppose you are suddenly transported to a planet with 1/4 the mass of Earth but the same radius as the Earth. Your weight would ________ by a factor of ________.

Select one of the following:

  • Increase; 4

  • Increase; 16

  • Decrease; 4

  • Decrease; 16

  • Increase; 2

Question 17 of 36

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The force of gravity that an object is directly proportional to its:

Select one of the following:

  • Inertia

  • Size

  • Mass

  • Density

  • Distance

Question 18 of 36

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If you measured the orbital period of the Moon and the distance between the Earth and the Moon then you could calculate:

Select one of the following:

  • The mass of the Moon

  • The sum of the masses of the Earth and the Moon

  • The average distance between the Earth and Sun

  • The radius of the Earth

  • The radius of the Moon

Question 19 of 36

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The speed of light was first determined by which scientist?

Select one of the following:

  • Galileo

  • Bugs Bunny

  • Romer

  • Einstein

Question 20 of 36

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If the Sun instantaneously stopped giving off light, what would happen on Earth?

Select one of the following:

  • It would immediately get dark.

  • It would get dark 8 minutes later.

  • It would het dark 27 minutes later.

  • It would get dark 1 hour later.

  • IT would get dark 24 hours later.

Question 21 of 36

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A light-year is a unit that is used to measure:

Select one of the following:

  • Time

  • Wavelength

  • Speed

  • Energy

  • Distance

Question 22 of 36

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If the frequency of a beam of light were to increase, its period would ________ and its wavelength would ________?

Select one of the following:

  • Decrease, increase.

  • Increase; decrease.

  • Increase; increase.

  • Decrease; decrease.

  • Stay the same; stay the same

Question 23 of 36

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Which of the following lists different types of electromagnetic radiation in order from the smallest wavelength to the largest wavelength?

Select one of the following:

  • Radio waves, infrared, visible, ultraviolet, X-rays.

  • Gamma rays, ultraviolet, visible, infrared, radio waves.

  • Gamma rays, X-rays, infrared, visible, ultraviolet.

  • X-rays, infrared, visible, ultraviolet, radio waves.

  • Radio waves, ultraviolet, visible, infrared, gamma rays

Question 24 of 36

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As wavelength increases, the energy of a photon ________ and its frequency ________.

Select one of the following:

  • Increases; decreases.

  • Increases; increases.

  • Decreases; decreases.

  • Decreases; increases

Question 25 of 36

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How do the wavelength and frequency of red light compare to the wavelength and frequency of blue light?

Select one of the following:

  • Red light has a longer wavelength and higher frequency than blue light.

  • Red light has a longer wavelength and lower frequency than blue light.

  • Red light has a shorter wavelength and higher frequency than blue light.

  • Red light has a shorter wavelength and lower frequency than blue light

Question 26 of 36

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Why is an iron atom a different element than a carbon atom?

Select one of the following:

  • A carbon atom has fewer neutrons in its nucleus than an iron atom.

  • An iron atom has more protons in its nucleus than a carbon atom.

  • An iron atom has more electrons than a carbon atom.

  • A carbon atom is bigger than an iron atom.

  • All of the above are true.

Question 27 of 36

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When an electron moves from a higher energy level in an tom to a lower energy level:

Select one of the following:

  • The atom is ionized.

  • A continuous spectrum is emitted.

  • A photon is absorbed.

  • The electron needs to lie down to take a rest.

  • A photon is emitted.

Question 28 of 36

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Which of these objects would emit an absorption spectrum?

Select one of the following:

  • An incandescent light bulb.

  • A fluorescent light bulb.

  • An isolated hot gas cloud.

  • A hot, solid object.

  • A thin, cool gas cloud that lies in front of a hotter blackbody.

Question 29 of 36

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A spaceship is traveling toward Earth while giving off a constant radio signal with a wavelength of 1 meter. What will the signal look like to people on Earth?

Select one of the following:

  • A signal with a wavelength less than 1m.

  • A signal with a wavelength more than 1m.

  • A signal moving faster than the speed of light.

  • A signal moving slower than the speed of light.

  • A signal with a wavelength of 1m, moving the normal the normal speed of light.

Question 30 of 36

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Which of these would have the biggest redshift?

Select one of the following:

  • A star moving slowly toward you.

  • A star moving fast toward you.

  • A star moving slowly away from you.

  • A star moving fast away from you.

  • A star that is not moving away from you or toward you.

Question 31 of 36

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What does it mean to say that an object is in thermal equilibrium?

Select one of the following:

  • It isn't absorbing any energy.

  • It isn't radiating any energy.

  • It is radiating more energy than it is absorbing.

  • It is absorbing more energy than it is radiating.

  • It is absorbing the same amount of energy that it is radiating.

Question 32 of 36

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The Kelvin temperature scale is used in astronomy because:

Select one of the following:

  • At 0 K an object has absolutely zero energy.

  • Water freezes at 0 K.

  • Water boils at 100 K.

  • Hydrogen freezes at 0 K.

  • The highest temperature possible is 1000 K.

Question 33 of 36

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Why do some stars in the sky appear blue, while other stars appear red?

Select one of the following:

  • The red stars are hotter on their surfaces than the blue stars.

  • The blue stars are hotter on their surfaces than the red stars.

  • The blue stars are closer to us than the red stars.

  • The red stars are closer to us than the blue stars.

  • The blue stars are moving away from us faster than the red stars.

Question 34 of 36

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A reflecting telescope is preferable over a refracting telescope because:

Select one of the following:

  • Its lack of chromatic aberration.

  • Its shorter length for the same aperture size.

  • There is no aperture limit.

  • Its lighter weight for larger apertures.

  • All of the above are valid reasons.

Question 35 of 36

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Which telescope would collect 100 times more light than a 1-meter telescope?

Select one of the following:

  • 100-meter telescope.

  • 80-meter telescope.

  • 50-meter telescope.

  • 30-meter telescope.

  • 10-meter telescope.

Question 36 of 36

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Chromatic aberration results from:

Select one of the following:

  • Blue light being reflected more than red light.

  • Red light being reflecting more than blue light.

  • Red light being refracted more than blue light.

  • Blue light being refracted more than red light.

  • A lens being polished incorrectly.

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Astronomy 104

Natalie Balzert
Quiz by , created about 1 year ago

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Natalie Balzert
Created by Natalie Balzert about 1 year ago
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